add_text_at_head

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions the action and return value (True on success), but it does not specify whether the operation modifies the file in-place, whether permissions are needed, or what happens if no text cells are found. This is insufficient for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, front-loaded sentence that conveys the core action efficiently. The inclusion of 'using Aspose.Cells Cloud API' is unnecessary and takes up space without adding value, but the rest is concise.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has 4 parameters, no annotations, and a claimed output schema (not shown to the evaluator). The description provides a basic return behavior but misses important context such as in-place modification, range syntax, and file_token meaning. Given the mutation nature, more details are needed for full completeness.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so the description must explain parameters. It implies the 'text' and '_range' parameters, and 'worksheet' is mentioned, but 'file_token' is not explained and the format of the range string is left ambiguous. This adds some value but does not fully compensate for the lack of schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific action: adds text to the beginning of each text cell in a specified range. The verb 'adds' and the resource ('text to the beginning of each text cell') clearly distinguish it from siblings like add_text_at_tail and add_text_before_text.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description clearly indicates when to use this tool: when text needs to be prepended to cells in a worksheet range. It does not explicitly contrast with alternatives, but the head/tail and before/after distinctions among siblings are implied by the description's use of 'beginning (head)'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.